error in elastic client when trying to get the mappings about elasticsearch-net HOT 5 CLOSED

GET https://0c855f771a5f47dd8541e202bb8c6640.westeurope.azure.elastic-cloud.com/default_dasfsdfs/_mapping
Status: 200
{"default_dasfsdfs":{"mappings":{"_meta":{"last_task_id":0},"_source":{"enabled":true,"excludes":["ContentItem_DisplayText_Analyzed"]},"properties":{"ContentItemId":{"type":"keyword"},"ContentItemVersionId":{"type":"keyword"},"ContentItem_ContainedPart":{"properties":{"Ids":{"type":"keyword"},"Order":{"type":"keyword"}}},"ContentItem_ContentType":{"type":"keyword"},"ContentItem_DisplayText":{"properties":{"Analyzed":{"type":"text"},"Keyword":{"type":"keyword"},"Normalized":{"type":"keyword"}}},"ContentItem_FullText":{"type":"keyword"},"ContentItem_Owner":{"type":"keyword"},"ContentItem_Vector":{"type":"nested","properties":{"Memory":{"type":"dense_vector","dims":1536,"index":true,"similarity":"cosine","index_options":{"type":"int8_hnsw","m":16,"ef_construction":100}},"Text":{"type":"text","index":false}}}}}}}







fail: Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[1]
      An unhandled exception has occurred while executing the request.
      System.Text.Json.JsonReaderException: 'V' is an invalid start of a value. LineNumber: 0 | BytePositionInLine: 0.
         at System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resource, Byte nextByte, ReadOnlySpan`1 bytes)
         at System.Text.Json.Utf8JsonReader.ConsumeValue(Byte marker)
         at System.Text.Json.Utf8JsonReader.ReadFirstToken(Byte first)
         at System.Text.Json.Utf8JsonReader.ReadSingleSegment()
         at System.Text.Json.JsonDocument.Parse(ReadOnlySpan`1 utf8JsonSpan, JsonReaderOptions readerOptions, MetadataDb& database, StackRowStack& stack)
         at System.Text.Json.JsonDocument.ParseUnrented(ReadOnlyMemory`1 utf8Json, JsonReaderOptions readerOptions, JsonTokenType tokenType)
         at System.Text.Json.JsonDocument.ParseValue(ReadOnlyMemory`1 json, JsonDocumentOptions options)
         at System.Text.Json.Nodes.JsonNode.Parse(String json, Nullable`1 nodeOptions, JsonDocumentOptions documentOptions)
         at System.Text.Json.Nodes.JNode.Parse(String json, Nullable`1 nodeOptions, JsonDocumentOptions documentOptions) in C:\IntelliDev20\src\OrchardCore\OrchardCore.Abstractions\Json\Nodes\JNode.cs:line 50
         at System.Text.Json.Nodes.JNode.Parse(String json) in C:\IntelliDev20\src\OrchardCore\OrchardCore.Abstractions\Json\Nodes\JNode.cs:line 39
         at OrchardCore.Search.Elasticsearch.AdminController.Mappings(String indexName) in C:\IntelliDev20\src\OrchardCore.Modules\OrchardCore.Search.Elasticsearch\Controllers\AdminController.cs:line 442
         at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(ActionContext actionContext, IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Logged|12_1(ControllerActionInvoker invoker)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeNextActionFilterAsync>g__Awaited|10_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Rethrow(ActionExecutedContextSealed context)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeInnerFilterAsync>g__Awaited|13_0(ControllerActionInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(State& next, Scope& scope, Object& state, Boolean& isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeFilterPipelineAsync>g__Awaited|20_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, Object state, Boolean isCompleted)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
         at Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>g__Logged|17_1(ResourceInvoker invoker)
         at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
         at SixLabors.ImageSharp.Web.Middleware.ImageSharpMiddleware.Invoke(HttpContext httpContext, Boolean retry)
         at OrchardCore.Liquid.ScriptsMiddleware.Invoke(HttpContext httpContext) in C:\IntelliDev20\src\OrchardCore.Modules\OrchardCore.Liquid\ScriptsMiddleware.cs:line 70
         at Microsoft.AspNetCore.Localization.RequestLocalizationMiddleware.Invoke(HttpContext context)
         at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
         at OrchardCore.Diagnostics.DiagnosticsStartupFilter.<>c__DisplayClass3_0.<<Configure>b__1>d.MoveNext() in C:\IntelliDev20\src\OrchardCore.Modules\OrchardCore.Diagnostics\DiagnosticsStartupFilter.cs:line 34
      --- End of stack trace from previous location ---
         at Microsoft.AspNetCore.Diagnostics.StatusCodePagesMiddleware.Invoke(HttpContext context)
         at OrchardCore.ContentPreview.PreviewStartupFilter.<>c.<<Configure>b__0_1>d.MoveNext() in C:\IntelliDev20\src\OrchardCore.Modules\OrchardCore.ContentPreview\PreviewStartupFilter.cs:line 16
      --- End of stack trace from previous location ---
         at OrchardCore.Modules.ModularTenantRouterMiddleware.Invoke(HttpContext httpContext) in C:\IntelliDev20\src\OrchardCore\OrchardCore\Modules\ModularTenantRouterMiddleware.cs:line 47
         at OrchardCore.Modules.ModularTenantContainerMiddleware.<>c__DisplayClass4_0.<<Invoke>b__0>d.MoveNext() in C:\IntelliDev20\src\OrchardCore\OrchardCore\Modules\ModularTenantContainerMiddleware.cs:line 61
      --- End of stack trace from previous location ---
         at OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func`2 execute, Boolean activateShell) in C:\IntelliDev20\src\OrchardCore\OrchardCore.Abstractions\Shell\Scope\ShellScope.cs:line 291
         at OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func`2 execute, Boolean activateShell) in C:\IntelliDev20\src\OrchardCore\OrchardCore.Abstractions\Shell\Scope\ShellScope.cs:line 296
         at OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func`2 execute, Boolean activateShell) in C:\IntelliDev20\src\OrchardCore\OrchardCore.Abstractions\Shell\Scope\ShellScope.cs:line 301
         at OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func`2 execute, Boolean activateShell) in C:\IntelliDev20\src\OrchardCore\OrchardCore.Abstractions\Shell\Scope\ShellScope.cs:line 306
         at OrchardCore.Environment.Shell.Scope.ShellScope.UsingAsync(Func`2 execute, Boolean activateShell) in C:\IntelliDev20\src\OrchardCore\OrchardCore.Abstractions\Shell\Scope\ShellScope.cs:line 307
         at OrchardCore.Modules.ModularTenantContainerMiddleware.Invoke(HttpContext httpContext) in C:\IntelliDev20\src\OrchardCore\OrchardCore\Modules\ModularTenantContainerMiddleware.cs:line 59
         at Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
         at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
         at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

JsonSerializer.Serialize(response.Indices.FirstOrDefault().Value.Mappings, new JsonSerializerOptions());

Unable to retrieve client settings for JsonSerializerOptions.
Path:$.Properties

   at Elastic.Clients.Elasticsearch.ThrowHelper.ThrowJsonExceptionForMissingSettings() in /_/src/Elastic.Clients.Elasticsearch.Shared/Core/Exceptions/ThrowHelper.cs:line 40
   at Elastic.Clients.Elasticsearch.Mapping.PropertiesConverter.Write(Utf8JsonWriter writer, Properties value, JsonSerializerOptions options) in /_/src/Elastic.Clients.Elasticsearch.Shared/Types/Mapping/Properties.cs:line 62
   at System.Text.Json.Serialization.JsonConverter`1.TryWrite(Utf8JsonWriter writer, T& value, JsonSerializerOptions options, WriteStack& state)
   at System.Text.Json.Serialization.Metadata.JsonPropertyInfo`1.GetMemberAndWriteJson(Object obj, WriteStack& state, Utf8JsonWriter writer)
   at System.Text.Json.Serialization.Converters.ObjectDefaultConverter`1.OnTryWrite(Utf8JsonWriter writer, T value, JsonSerializerOptions options, WriteStack& state)
   at System.Text.Json.Serialization.JsonConverter`1.TryWrite(Utf8JsonWriter writer, T& value, JsonSerializerOptions options, WriteStack& state)
   at System.Text.Json.Serialization.JsonConverter`1.WriteCore(Utf8JsonWriter writer, T& value, JsonSerializerOptions options, WriteStack& state)
   at System.Text.Json.Serialization.Metadata.JsonTypeInfo`1.Serialize(Utf8JsonWriter writer, T& rootValue, Object rootValueBoxed)
   at System.Text.Json.JsonSerializer.WriteString[TValue](TValue& value, JsonTypeInfo`1 jsonTypeInfo)
   at System.Text.Json.JsonSerializer.Serialize[TValue](TValue value, JsonSerializerOptions options)